a physics teacher is walking on a sidewalk at a constant velocity toward a building with a two story window where a group of young physics students are gathered. the students make some calculations to determine if a water balloon dropped at a certain time will hit the teachers head. the teacher is 1.5 meters tall and will reach the window area in 1.8 seconds from the time of the drop. if the balloon is dropped from a height of 9 meters, will the water balloon hit the physics teacher?

Aspecial electronic sensor is embedded in the seat of a car that takes riders around a circular loop-the-loop ride at an amusement park. the sensor measures the magnitude of the normal force that the seat exerts on a rider. the loop-the-loop ride is in the vertical plane and its radius is 23 m. sitting on the seat before the ride starts, a rider is level and stationary, and the electronic sensor reads 740 n. at the top of the loop, the rider is upside down and moving, and the sensor reads 370 n. what is the speed of the rider at the top of the loop?

Alivestock company reports that the mean weight of a group of young steers is 1100 pounds with a standard deviation of 93 pounds. based on the model n(1100,93) for the weights of steers, what percent of steers weigh a) over 1050 pounds? b) under 1300 pounds? c) between 1150 and 1250 pounds?

Describe the function of the endomembrane system? what organelles are involved?